Re: Samsung PN60E550 Cannot Confirm Y-Main Failure
There shouldn't be any issue using 100V in place of 50V etc.
There shouldn't be any issue using 100V in place of 50V etc.
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Re: Samsung PN60E550 Cannot Confirm Y-Main Failure
Well, I constructed a new light saber--err, I mean I constructed the voltage divider and installed it and all works well now. Thanks, Drussell. It's still a mystery, but at least this one is done. Here's hoping it doesn't fail down the road!
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Re: Samsung PN60E550 Cannot Confirm Y-Main Failure
I have the E530 version of this TV. Mine would fire up and continue to run after I freeze sprayed just the IC. Didn't respond to freezing the cap or opto-isolater.
I replaced both the IC and cap, but still would not come on with a picture until the IC was freeze sprayed.
I'm going to try the voltage divider circuit trick and see if that cures it.Comment
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Re: Samsung PN60E550 Cannot Confirm Y-Main Failure
Thought it was fixed, I put in the voltage divider circuit, turned off and on several times.
Got a picture every time. Put the back on and crap, back to original problem. Took the back off, tried to turn on, but no picture. Quick shot of freeze spray and bam, powered on and got a picture.Comment
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Re: Samsung PN60E550 Cannot Confirm Y-Main Failure
I have this model again and this one did not work after replacing installing the mod. I've actually fixed about 6 of these before this and they all worked with the mod and just replacing the cap (never had to replace the IC again). This had a history of sometimes working, but when I got to it, there's no panel prime at all.
Guess I will have to go back to basics on it, but I thought I would see if anyone had any suggestions.Comment
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Re: Samsung PN60E550 Cannot Confirm Y-Main Failure
I have this model again and this one did not work after replacing installing the mod. I've actually fixed about 6 of these before this and they all worked with the mod and just replacing the cap (never had to replace the IC again). This had a history of sometimes working, but when I got to it, there's no panel prime at all.
Guess I will have to go back to basics on it, but I thought I would see if anyone had any suggestions.Comment
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Hi all!
HISENSE 65E7KQ PRO
RSAG7.820.13512 - chassis
MT9618BAATAB - cpu
RSAG7.820.12059 - power
HD650Y3U77 - panel
KLM8G1GETF - emmc
The TV does not turn on, the standby indicator is on. All voltages are present.
Emms is dead. Not readable, not detected.
Replaced emmc.
But with another dump there is no launch
Terminal log
UART
<
AC_ON
RPMB key is not yet programmed
HASH1_VERSION=0x00000000 64bit
E-B
FDE enabled
layout pattern onebin by SAR7,0... -
Hello,
I'm hoping someone could help me confirm if I have identified the following parts correctly.
Apparently the DP cable became stuck inside the graphics card and was yanked out. This caused some sort of short which burned the DP contacts and blew some resistors and ferrite beads.
The parts needing replacement are on the back of the board behind the HDMI input.
I have identified the parts as the following:
C6037: MLCC 0.1uf/16v(0402)x7R W05
R6016: RES 499 OHM 1/16W (0402) 1%
LB10911: Ferrite Bead (0402)...02-16-2025, 01:09 PM -
I've got a control display for a Carrier chiller that I'm trying to understand what the common failure with these boards are. This is the board in question https://www.supplyhouse.com/Carrier-...arquee-Display all of them seem to develop a failure with the up and down arrow buttons on the right side of the display, the esc and enter keys I've never seen fail. Once these boards are plugged in they run 24/7, you used to have to press extremely hard with the end of the blunt screwdriver and you could still get the arrows to work but now it has completely stopped working. The button... -
Problem
Fixing a dimming zone TV with LEDs not lighting up. Dimming zone circuit introduces added variable to diagnose LED and/or Dimming Zone Driver board? Some 1/2 rows of LEDs appears to be out in active dimming zone off AND some brightness flickering with active dimming zone high while playing changing video
Model & Board Pics
Conflicting Spec
Vizio indicate this TV has 10 dimming zones. However, LED strips and Zoned light driver connector suggest 12
https://www.shopjimmy.com/vizio-gj-2k1... -
I was working on this CNC machine today found no keyboard functioning no control relay powering on
The screen powered on and was giving an operation error but the manual was not very clear about what the error exactly was but with a little bit of troubleshooting and finding out that the control relays not powering on and no keyboard functions we narrowed down to this one switching power supply which of course does not have any indicator LED light they are on the keyboard interface/relay controller board
Found shorted diodes on main controller relays there are 3 of them that...
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